CNA Practice Test
Vital signs and reportingQuestion 1369 of 1700

How long does an axillary thermometer usually stay in place?

  1. About 1 second, then read the display
  2. About 10 to 20 seconds, until it beeps
  3. About 20 minutes, until the arm is warm
  4. About 5 minutes, until the arm is dry
Show answer

Correct answer: About 10 to 20 seconds, until it beeps

Leave it until the device beeps.

Source: Nursing Assistant (Reuter), 7.8: Skills Checklist- Oral Tympanic Axillary Rectal and Temporal Temperatures

Practice vital signs and reporting

Questions last reviewed: 18 October 2026